Improved sash-lock



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Letters Patent No.` 93,425, dated August 10, 1869.

IMPROVED SASH-LOCK.

The Schedule referred to in these Letters Patent and making part of the same.

To' allpwhont tt 'may concern A Be it known that I, SAMUEL EASTER, of Charlestown, inthe county of Middlesex, and State of Mas.- sachusetts, have invented a new and useful Lock for Fastening Windows, Sac.; and I he'reby decl-are that the following is a full and exact description thereof, and reference may be had 'to the accompanying drawings, and to the letters of reference thereon,making d rl,- its springs.r v

e, the recess in the 'bolt-bar f, for the pallet g to work in.4

h, the shaft, for turning the pallet back and forth.y

fi t' fi t, Sac., notches or holes in the sashes ,to receive the bolts.

The window-frame, sashes, 8vo., are made in the usual way, and the sashes have notches or holes, as i ti t', 85e., as seen'infigs. 1 and 2 in the accompanying drawings, and these notches correspond in the sashes, so that the same may be made fast, and neither be raised or lowered without a turn of the lock.r

Fig. 2 shows the position of the sashes when made fast, whether the window is closed or open, at top or bottom, or both top and bottom. There may be,also,

a slot or groove in the sashes, allowing 'them to be raised or lowered a short space. ple but effective device. v

Fig. 3 shows the lock 'as it appears when the bolts a, b are pushed into the .sashes B C, as seen in. iig. 2, and also the shaft for turning the pallet.

Fig. 4 is a vertical section of the' lock, showing the bolt b, the pallet g, which is made fast to the shaft h, the case c, andthe recess c.

i Fig. 5 .shows the interior 4of the lock, the springs d d, the recess e, and the pallet g.

lhe lock is made of metal, consisting of an outer The lockis a simplate inserted and fastened into theface of the frame,

as seen in iig. 1, with the back set in, as seen in said figure.

The lock is one inch in depth, from thefront plate, or thereabout. The front plate and top of the case, c, are. in one piece. The case, except the top, is in one piece,and the shaft h and pallet g are secured to and therein, as seen in g. 3.

The'bolts t b are in one piece, with pins in the back part of each bolt, which keep in 'place the springs d l the springs push against the back of the case of the lock.

The recess e in the bar-bolt is made Haring on the side toward the shaft h, so that when' the pallet g is pushed back and forward, it lo'cks and holds the bolt Ain place, locked or unlocked.

The shaft It pierces the front of the casing, and is turned back and forth with a key. lVhen the bolts l are turned .back by the key, they remain fast in that position, andwhen thewindow is raised or' lowered and the bolts locked, they cannot be raised or lowered again without turning the key. The window can be let down from the top and be made fast, vso that no one from without or within =ean raise or lower it without the use of the key, and no one from without can pick the lock or raise the window, thus making it secure.

The Adevice of the lock is simple in construction,y

costing less than the usual fastening when the windows are closed; it is as effective in securing the window as any device can possibly be, and will be of great value in almost any kind of window of more than one sash. I y

I do not claim, broadly, the use of the spring bolt-for 'the purpose of supporting andvsecuring the upper and lower sash of windows; nor do I claim, broadly and SAMUEL EASTER.

Witnesses:

HORACE E. MORSE,

J. L. NEWTON. 

